US Bridges

US-84/285 over Unnamed Waterway

Poor

Santa Fe County, New Mexico · 1.96 MI N of JCT Nm 14 & · Structure no. 000000000005767

Built
1955
70 years old
Condition
Poor
inspected November 2024
Type
Culvert
Concrete
Length
39 ft
4 main spans
Daily traffic
30,344
2023 count
Owner
State
State Highway Agency

About this bridge

US-84/285 over Unnamed Waterway is a concrete culvert carrying US-84/285 over Unnamed Waterway in Santa Fe County, New Mexico. It was built in 1955, so it is 70 years old, older than the New Mexico average of 51.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 30,344 vehicles a day, roughly 12% of them trucks, projected to reach 41,267 by 2043. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesUS-84/285
CrossesUnnamed Waterway
Location1.96 MI N of JCT Nm 14 &
RouteU.S. Route 84
CountySanta Fe County
StateNew Mexico
Coordinates35.70116, -105.94961
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,344 (2023)
Projected traffic41,267 by 2043
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$424,000 (2030 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-84/285 over Unnamed Waterway built?

It was built in 1955, making it 70 years old in 2025.

What condition is US-84/285 over Unnamed Waterway in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does US-84/285 over Unnamed Waterway carry?

About 30,344 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is US-84/285 over Unnamed Waterway?

The structure is 39 ft (11.9 m) long with a longest span of 6 ft (1.8 m).

Who owns US-84/285 over Unnamed Waterway?

It is owned by the State Highway Agency.